/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package com.pinterest.secor.util;

import org.apache.avro.generic.GenericRecord;
import org.apache.avro.io.Encoder;
import org.apache.avro.io.EncoderFactory;
import org.apache.avro.specific.SpecificDatumWriter;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;

public class AvroSerializer {
    public static byte[] serialize(SpecificDatumWriter<GenericRecord> writer, GenericRecord record) throws IOException {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        Encoder encoder = EncoderFactory.get().directBinaryEncoder(out, null);
        writer.write(record, encoder);
        encoder.flush();
        ByteBuffer serialized = ByteBuffer.allocate(out.toByteArray().length);
        serialized.put(out.toByteArray());
        return serialized.array();
    }
}
